Senior Actuator Design Engineer jobs in United States
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Figure · 1 day ago

Senior Actuator Design Engineer

positionSan Jose, CA
timeFull-time
remoteOnsite
seniorityMid, Senior Level
money$150K/yr - $190K/yr
date3+ years exp

Figure is an AI robotics company developing autonomous general-purpose humanoid robots. They are seeking a passionate and skilled Actuator Design Engineer to define and execute the design of compact, high-torque, and highly efficient actuators for humanoid robots.

Artificial Intelligence (AI)HardwareIndustrial AutomationRobotics

Responsibilities

Own the mechanical design of electric actuators, including lamination stacks, high-speed rotors, geartrains, and bearing systems
Design and size planetary gearboxes and other reduction stages to meet torque density, speed, and lifetime requirements
Architect full actuator assemblies including structural layout, thermal path considerations, and serviceability
Lead design of rotor and stator assemblies including magnet retention (adhesives, interference fits), balancing, and burst strength analysis
Perform detailed tolerance stack-ups, shaft fits, bearing life calculations, and structural analysis using FEA
Use KISSsoft or Romax to model gearbox performance, lifetime, and manufacturability
Develop detailed CAD in CATIA and release complete drawing packages for supplier release and internal manufacturing
Collaborate closely with electromagnetic, controls, and system teams to deliver integrated, validated actuator solutions
Support vendor discussions and DFM reviews to ensure robust and scalable production of actuator components

Qualification

Electric motor designGeartrain developmentCATIA proficiencyKISSsoftRomaxMechanical design fundamentalsPlanetary gearbox designBearing selectionCommunicationCross-functional collaboration

Required

Bachelor's degree in Mechanical Engineering
3+ years of experience in mechanical design of actuators, electric motors, or gear-driven systems
Strong fundamentals in mechanical design, dynamics, and structural analysis
Proven experience designing planetary or other compact gearbox architectures
Deep understanding of bearing selection, preloading, and life estimation
Proficiency with CATIA (V5 or V6) for complex assemblies and surfacing
Hands-on experience with rotor balancing and high-speed design for rotating systems
Proficient with KISSsoft or Romax for gearbox modeling and optimization
Excellent communication skills and ability to thrive in a fast-paced, cross-functional environment

Preferred

Master's degree in Mechanical Engineering with a focus on machine design or dynamics
Experience designing actuators for robotics, aerospace, or automotive applications
Knowledge of thermal management in compact electromechanical systems
Familiarity with lamination stack-up design, magnet bonding, and motor assembly methods
Experience taking actuator designs from concept through prototyping and into production

Company

Figure

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Figure is an AI robotics company that develops autonomous general-purpose humanoid robots.
dateFounded in 2022
location
San Jose, California, USA
people-size201-500 employees
web-link
https://www.figure.ai

Funding

Current Stage
Growth Stage
Total Funding
$1.85B
Key Investors
Parkway Venture CapitalIntel CapitalBrett Adcock
2025-09-16Series C· $1B
2024-02-24Series B· $675M
2023-07-17Series Unknown· $9M

Leadership Team

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Brett Adcock
Founder
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Company data provided by crunchbase